Harvester-elevator.



No. 801,910. PA'TENTED OCT. 17, 1905.

. 0. A. A. RAND.

HARVESTER ELEVATOR. APyLmATIoN rILEn JUNE ze. 1905.4

miew u. www cu, wma-ummmwnsns wnsmnavow u C iinrrnp s'rAfrEs PATENT OFFICE.

CHARLES A. ANDERSON RAND, OF CHICAGO, ILLINOIS, ASSIGNOR TO INTERNATIONAL HARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

HARVESTER-ELEVATOR.

Specification of Letters Patent.

Patented Oct. 17, 1905.

To @ZZ whom, it may concern:

Be it known that I, CHARLES A. ANDERSON RAND, a citizen of the United States, residing at Chicago, in the county, of Cook and State of Illinois, have invented certain new and useful Improvements in Harvester-Elevators, of which the following is a specication, reference being had to the accompanyingl drawings, forming a part thereof.

My invention relates to harvester-elevators having endless aprons or carriers that receive the grain from the platform-carrier and deliver it to a binder mechanism located at the delivery end thereof.

It consists in an improved construction of the supports for the rollers of the carriers whereby they may be adjusted in the direction of the length of the carriers for the purpose of tightening or loosening the same during the operation of the machine and in providing means whereby the carrier may adjust itself to the thickness of the stream of grain carried thereby or prevented from such movement, the object being to provide a construction both simple and eiiective to accomplish the desired purpose. I attain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is an elevation of part of a har- I vester-elevator suiiicient to illustrate the application of my invention. Fig. 2 is a detached detail of thev adjusting mechanism. Fig. 8 is an end view of Fig. 2 looking in the direction of the arrow, and Fig. 1 is an end view of the same ligure as seen from an opposite direction.

Similar reference characters refer to similar parts throughout the several views.

1 represents a-portion of the platform of a harvester, and 2 is one of the carrier-rollers mounted thereon.

3 is a part of the elevator-frame designed to support the lower endless carrier, and L and 5 represent elevator-frame members in which are mounted the rollers 6 and 7, designed to receive the upper endless carrier.

` The frame member 5 is supported by the seatsupport 8 in any of the usual ways.

shaft may be rocked in its bearings in the frame members by means of the hand-lever,

and 12 is a plate-spring having one end secured to the frame member 5 and the opposite end provided with a slotted portion 13, with which the lever 11 engages in a manner to yieldingly lock it against movement when adjusted in a certain position.

Mounted upon the crank portion of the rock-shaft at opposite ends thereof are adjustable links 14, having a slotted opening 15 at their upper ends embracing the rock-shaft and journal-bearings 16 at their lower ends, in which the journals of the roller 7 have their bearings, and intermediate enlarged openings 17, that receive the inner ends of pins 18, passing' through the frame members. The links have a limited swinging movement about the rock-shaft governed by the size and shape of the openings 17 when the crank portion of the rock-shaft is turned downward, as shown by full lines in Figs. 2 and 1, and a limited longitudinal movement when the crank portion of the rock-shaft is turned upward, as shown by dotted lines in Fig. 2, governed by the throw of the rock-shaftv and the elongation of said openings 15 and 17. When the rock-shaft is in the latter position and the endless carrier is tightened by the usual strapand-buckle means, the links are moved upward until the pins 18 reach the bottom of the openings 17, and then the links are locked against a swinging movement.

When the hand-lever 11 is adjusted to the position shown in Figs. 1,2, and 3, the links are moved downward along the frame members to theirl eXtreme limit and the carrier carried by the roller is correspondingly tightened, and in this position the carrier is free to rise upward under pressure of the grain as the roller rises and the links swing about the rock-shaft, as shown in Fig. 4. When the hand-lever is turned downward, as shown by dotted lines in Fig. 2, the tension of the carrier is released, as the roller is allowed to move upward with the longitudinal movement of the links.

The openings 17 are made wide at their upper ends, and the side walls converge inward as they approach the journal-bearings 16, the purpose of which being to allow the roller and carrier to iioat upon the stream of grain when the links are adjusted longitudinally in one direction and to prevent such movement when they are adjusted in an opposite direction, it being understood that the carrier is tight- IOO ened by independent means when it is desired to operate it with the links adjusted in the latter direction.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a harvester-elevator, the combination of a frame parallel to the stream of grain, carrier-rollers mounted in said frame at opposite ends thereof` means for adjusting one roller toward or from the other, said means permitting a bodily movement of said adjustable roller toward or from the stream of grain.

2. In a harvester-elevator, the combination of a frame parallel to the stream of grain, carrier-rollers mounted in said frame at opposite ends thereof, means for adjusting one roller toward or from the other, said means permitting a bodily movement of said adjustable roller toward or from the stream of grain when said roller is adjusted in one direction only.

3. In a harvester-elevator, the combination of a frame parallel to the stream of grain, carrier-rollers mounted in said frame at opposite ends thereof, means for adjusting one roller toward or from the other, said means permitu ting a bodily movement of said adjustable roller toward or from the stream of grain when said roller is adjusted in a direction away from the other roller.

4. In a harvester-elevator, the combination of a frame parallel to the stream of grain, carrier-rollers mounted in said frame at opposite ends thereof, one of said rollers journaled in links supported by and adapted to slide longitudinally along the frame toward or from the other roller, means for moving said links longitudinally, said means permitting' said links to move relative to the supporting menibers whereby the roller journaled therein may move toward or from the stream of grain.

5. In a harvester-elevator, the combination of a frame, carrier-rollers mounted in said frame, one of said rollers journaled in links supported by and adapted to slide longitudinally along the frame toward or from the other roller, means for moving said links longitudinally, said means permitting said links to move relative to the supportingI members, said means comprising pins passing through the frame and entering enlarged openings in saidl links.

6. In a harvester-elevator, the combination of a frame, carrier-rollers mounted in said frame, one of said rollers journaled in links supported by and adapted to slide longitudinally along the frame toward or from the other roller, means for moving said links longitudinally, said means permitting said links to move relative to the supporting members, said means comprising openings in the links, the opposite sides of which converge toward the roller-journals, and pins passing through the frame and entering said openings.

7. In a harvester-elevator, the combination of a frame, carrier-rollers mounted in. said frame, links slidably mounted upon said frame and having one of said rollers journaled at one end thereof, said links having openings at their opposite ends, a rock-shaft mounted on the frame and engaging with said openings in a manner to slide said links when rocked about the bearings, openings in said links intermediate the ends, pins passing through the frame and entering said intermediate openings, said openings having wide upper ends and narrow lower ends whereby the links are permitted to swing a limited distance when adjusted downward and prevented from such movement when adjusted upward.

In witness whereof I hereto 'aiiix my signature in presence of two witnesses,

CHARLES A. ANDERSON RAND. Witnesses:

CHAs. BERRY, INeoLF C. KLEPPE. 

